Power transformers are one of the main equipment in power production, with high cost and long manufacturing time. If a fault occurs during supply process, it will prevent normal operation system result no electricity available to users. One factors affecting safe is short circuit fault, faults at outlet substations or close proximity can also pose serious threat transformers. This article simul...

In this paper we improve the layered implementation of arbitrary stabilizer circuits introduced by Aaronson and Gottesman in Phys. Rev. A 70(052328), 2004. In particular, we reduce their 11-stage computation -H-C-P-C-P-C-H-P-C-P-Cinto an 8-stage computation of the form -H-CCZ-P-H-P-CZ-C-. We show arguments in support of using -CZstages over the -Cstages: not only the use of -CZstages allows a s...

In this paper, in order to show some interesting phenomena of three dimensional autonomous ordinary differential equations, the chaotic behavior as a function of a variable control parameter, has been studied. The complex dynamical behaviors of the system are further investigated by means of eigenvalue structures and various attractors. The chaotic system examined in MATLAB 2010. The Oscillator...

In this paper, a method is proposed for extraction of coupled networks from layout information for simulation of electrothermal device behavior. The networks represent a threedimensional (3-D) device structure with circuit elements. The electrical and thermal characteristics of this circuit representation are calculated with a circuit simulator. Spatial potential distributions, current flows, a...

A software organization of a new circuit simulator, SAMOC (Switchedcapacitor Analysis of MOs Circuit) is presented in this paper. SAMOC employs extremely simplified, piecewise linear, resistive models to represent the semiconductor devices such as MOS transistors and ideal diodes in the simulated circuits. SAMOC also supports ideal switches and ideal capacitors for analyzing switched-capacitor ...

Vertical roller mills (VRMs) are well-established grinding equipment for various tasks in the coal and cement industry. There are few studies on simulation of VRMs. In this research work, application of perfect mixing model for simulation of a VRM in a cement grinding plant was investigated. Two sampling surveys were carried out on the VRM circuit. The samples and data from the first survey wer...

We present a formula of short-circuit power dissipation for static CMOS logic gates. By representing shortcircuit current by a piece-wise linear function and considering a current owing from input node to output node through gate capacitances, the accuracy is improved signi cantly. The error of our formula in a CMOS inverter is less than 15% from circuit simulation in many cases of our experime...

The software support for simulation of electrical circuits has been developed for more than sixty years. Currently, the standard tools for simulation of analogous circuits are the simulators based on the open source package Simulation Program with Integrated Circuit Emphasis generally known as SPICE (Biolek 2003). There are many different applications that provide graphical interface and extend...

A detailed model of wind power station, including Double Fed Induction Generator, DFIG is presented in this paper. Two control mechanisms are included in the model. The inner control system uses stator flux oriented control for the rotor side converter and grid voltage vector control for the grid side converter. The outer control system is used for wind turbine pitch angle. PSCAD/EMTDC is us...